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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Identification

Chemical structure
Display Name:
Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
EC Number:
231-494-8
EC Name:
Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
CAS Number:
7585-41-3
Molecular formula:
C18H13ClN2O6S.Ba
IUPAC Name:
barium 4-[(5-chloro-4-methyl-2-sulfonatophenyl)diazenyl]-3-hydroxy-2-naphthoate

Type of Substance

Composition:
mono-constituent substance
Origin:
organic

Substance Identifiers open all close all

  • C.I. Pigment Red 48:1
  • DCC Red 2780
  • DCC Red 2782
  • DCC Red 2783
  • SEIKAFAST RED 8040
  • Sudacolor Red 557
  • Compositions

    Boundary Composition(s) open all close all

    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    EC Number:
    231-494-8
    EC Name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    CAS Number:
    7585-41-3
    Molecular formula:
    C18H13ClN2O6S.Ba
    IUPAC Name:
    barium 4-[(5-chloro-4-methyl-2-sulfonatophenyl)diazenyl]-3-hydroxy-2-naphthoate

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    Pigment Red 48:1_Nanoform_Multimodal

    Shape

    Shape descriptionopen allclose all
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    no
    Typical composition:
    ca. 50 %
    Range:
    > 1 - <= 100 %
    Shape category:
    spheroidal
    Shape:
    spherical
    Pure shape:
    no
    Typical composition:
    ca. 50 %
    Range:
    > 1 - <= 100 %

    Particle size distribution and range

    Particle size distribution and rangeopen allclose all
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    ca. 15 nm
    Range:
    > 1 - < 80 nm
    Percentile:
    D50
    Typical value:
    ca. 25 nm
    Range:
    > 10 - < 100 nm
    Percentile:
    D90
    Typical value:
    ca. 40 nm
    Range:
    > 20 - < 120 nm
    Typical length:
    ca. 100 nm
    Range of length:
    > 10 - < 200 nm
    Range of aspect ratio (:1):
    >= 1 - <= 9
    Fraction of constituent particles in the size range 1-100 nm:
    > 80 - <= 100 %
    Shape category:
    spheroidal
    Percentileopen allclose all
    Percentile:
    D90
    Typical value:
    ca. 90 nm
    Range:
    > 50 - < 300 nm
    Percentile:
    D50
    Typical value:
    ca. 50 nm
    Range:
    > 10 - < 100 nm
    Percentile:
    D10
    Typical value:
    ca. 20 nm
    Range:
    > 1 - < 80 nm
    Fraction of constituent particles in the size range 1-100 nm:
    > 80 - <= 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    Pigment Red 48:1
    Pure structure:
    yes

    Specific surface area

    Typical specific surface area:
    ca. 40 m²/g
    Range of specific surface area:
    > 15 - < 500 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no

    Legal Entity Composition(s) open all close all

    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    EC Number:
    231-494-8
    EC Name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    CAS Number:
    7585-41-3
    Molecular formula:
    C18H13ClN2O6S.Ba
    IUPAC Name:
    barium 4-[(5-chloro-4-methyl-2-sulfonatophenyl)diazenyl]-3-hydroxy-2-naphthoate

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    Pigment Red 48:1_Nanoform_Elongated

    Shape

    Shape description
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    yes

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D90
    Typical value:
    36.2 nm
    Range:
    > 10 - < 200 nm
    Percentile:
    D50
    Typical value:
    23.9 nm
    Range:
    > 10 - < 100 nm
    Percentile:
    D10
    Typical value:
    16.6 nm
    Range:
    > 1 - < 50 nm
    Typical length:
    98.8 nm
    Range of length:
    > 10 - < 160 nm
    Typical aspect ratio (:1):
    3.5 :1
    Range of aspect ratio (:1):
    >= 1 - <= 5
    Fraction of constituent particles in the size range 1-100 nm:
    > 80 - <= 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    Pigment Red 48:1
    Pure structure:
    yes

    Specific surface area

    Typical specific surface area:
    38 m²/g
    Range of specific surface area:
    > 10 - < 500 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    EC Number:
    231-494-8
    EC Name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    CAS Number:
    7585-41-3
    Molecular formula:
    C18H13ClN2O6S.Ba
    IUPAC Name:
    barium 4-[(5-chloro-4-methyl-2-sulfonatophenyl)diazenyl]-3-hydroxy-2-naphthoate

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    This nanoform is covered by a registration:
    no
    Name of nanoform:
    EC_231_494_8__Pigment_red_48_1

    Shape

    Shape descriptionopen allclose all
    Shape category:
    elongated
    Remarks:
    multimodal shape
    Shape:
    rod
    Pure shape:
    no
    Typical composition:
    ca. 48 %
    Range:
    >= 0 - <= 100 %
    Shape category:
    spheroidal
    Remarks:
    multimodal shape
    Shape:
    cubic
    Pure shape:
    no
    Typical composition:
    ca. 52 %
    Range:
    >= 0 - <= 100 %

    Particle size distribution and range

    Particle size distribution and rangeopen allclose all
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    34.9 nm
    Range:
    >= 10.2 - <= 59.6 nm
    Percentile:
    D50
    Typical value:
    60 nm
    Range:
    >= 35.3 - <= 84.7 nm
    Percentile:
    D90
    Typical value:
    96.7 nm
    Range:
    >= 72 - <= 121.4 nm
    Percentile:
    D10
    Typical value:
    14.4 nm
    Range:
    >= 6.9 - <= 21.9 nm
    Percentile:
    D50
    Typical value:
    21.2 nm
    Range:
    >= 13.7 - <= 28.7 nm
    Percentile:
    D90
    Typical value:
    31.2 nm
    Range:
    >= 23.7 - <= 38.7 nm
    Typical length:
    63.6 nm
    Range of length:
    ca. 9 - ca. 130 nm
    Typical aspect ratio (:1):
    > 3 :1
    Range of aspect ratio (:1):
    >= 3 - <= 9
    Additional information:
    Please note: no shape-specific evaluation has been conducted on the individual particles. Hence, the reported average particle sizes cover all shape categories - spheroidal and elongated.
    Nevertheless, the average particle size distribution, is within the boundary composition limits for both shape categories. Hence an individual evaluation of elongated and spherical particle size distribution is not considered necessary.

    The average aspect ratio of 530 representative particles was 3.04±1.28:1, based on the aspect ratio and representative TEM images, 48% of the particles are elongated (rods, aspect ratio >3:1) and 52% are spheroidal (cubes, aspect ratio <3:1).

    Supporting analytical data are provided in Section 1.4 of the IUCLID dossier.

    Fraction of constituent particles in the size range 1-100 nm:
    >= 80 - <= 100 %
    Shape category:
    spheroidal
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    34.9 nm
    Range:
    >= 10.2 - <= 59.6 nm
    Percentile:
    D50
    Typical value:
    60 nm
    Range:
    >= 35.3 - <= 84.7 nm
    Percentile:
    D90
    Typical value:
    96.7 nm
    Range:
    >= 72 - <= 121.4 nm
    Percentile:
    D10
    Typical value:
    14.4 nm
    Range:
    >= 6.9 - <= 21.9 nm
    Percentile:
    D50
    Typical value:
    21.2 nm
    Range:
    >= 13.7 - <= 28.7 nm
    Percentile:
    D90
    Typical value:
    31.2 nm
    Range:
    >= 23.7 - <= 38.7 nm
    Additional information:
    Please note: no shape-specific evaluation has been conducted on the individual particles. Hence, the reported average particle sizes cover all shape categories - spheroidal and elongated.
    Nevertheless, the average particle size distribution, is within boundary composition limits for all both shape categories. Hence an individual evaluation of elongated and spherical particle size distribution is not considered necessary.

    The average aspect ratio of 530 representative particles was 3.04±1.28:1, based on the aspect ratio and representative TEM images, 48% of the particles are elongated (rods, aspect ratio >3:1) and 52% are spheroidal (cubes, aspect ratio <3:1).

    Supporting analytical data are provided in Section 1.4 of the IUCLID dossier.

    Fraction of constituent particles in the size range 1-100 nm:
    >= 80 - <= 100 %

    Crystallinity

    Structures
    Structure:
    amorphous
    Name:
    barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    Pure structure:
    yes

    Specific surface area

    Typical specific surface area:
    ca. 97 m²/g
    Range of specific surface area:
    >= 15 - <= 500 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    EC Number:
    231-494-8
    EC Name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    CAS Number:
    7585-41-3
    Molecular formula:
    C18H13ClN2O6S.Ba
    IUPAC Name:
    barium 4-[(5-chloro-4-methyl-2-sulfonatophenyl)diazenyl]-3-hydroxy-2-naphthoate

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    C. I. Pigment Red 48:1_nanoform

    Shape

    Shape descriptionopen allclose all
    Shape category:
    spheroidal
    Shape:
    polyhedral
    Pure shape:
    no
    Typical composition:
    ca. 71 %
    Range:
    >= 55 - <= 89 %
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    no
    Typical composition:
    ca. 29 %
    Range:
    >= 11 - <= 45 %

    Particle size distribution and range

    Particle size distribution and rangeopen allclose all
    Shape category:
    spheroidal
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    ca. 23 nm
    Range:
    >= 21 - <= 25 nm
    Percentile:
    D50
    Typical value:
    ca. 35 nm
    Range:
    >= 34 - <= 36 nm
    Percentile:
    D90
    Typical value:
    ca. 54 nm
    Range:
    >= 52 - <= 56 nm
    Fraction of constituent particles in the size range 1-100 nm:
    > 80 - <= 100 %
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    ca. 31 nm
    Range:
    >= 27 - <= 35 nm
    Percentile:
    D50
    Typical value:
    ca. 41 nm
    Range:
    >= 37 - <= 46 nm
    Percentile:
    D90
    Typical value:
    ca. 58 nm
    Range:
    >= 54 - <= 62 nm
    Typical length:
    ca. 178 nm
    Range of length:
    >= 60 - <= 388 nm
    Typical aspect ratio (:1):
    ca. 4.1 :1
    Range of aspect ratio (:1):
    >= 3 - <= 7.3
    Fraction of constituent particles in the size range 1-100 nm:
    > 80 - <= 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    C.I. Pigment Red 48:1
    Pure structure:
    yes
    Typical composition:
    ca. 93 %
    Range:
    >= 80 - <= 100 %
    Crystal system:
    not applicable

    Specific surface area

    Typical specific surface area:
    ca. 66 m²/g
    Range of specific surface area:
    >= 20 - <= 150 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    EC Number:
    231-494-8
    EC Name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    CAS Number:
    7585-41-3
    Molecular formula:
    C18H13ClN2O6S.Ba
    IUPAC Name:
    barium 4-[(5-chloro-4-methyl-2-sulfonatophenyl)diazenyl]-3-hydroxy-2-naphthoate

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    Pigment Red 48:1_Nanoform_Multimodal

    Shape

    Shape descriptionopen allclose all
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    yes
    Typical composition:
    ca. 75 %
    Range:
    > 0 - <= 100 %
    Shape category:
    spheroidal
    Shape:
    cubic
    Pure shape:
    yes
    Typical composition:
    ca. 25 %
    Range:
    > 0 - <= 100 %

    Particle size distribution and range

    Particle size distribution and rangeopen allclose all
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    ca. 19 nm
    Range:
    > 1 - < 80 nm
    Percentile:
    D50
    Typical value:
    ca. 29 nm
    Range:
    > 10 - < 100 nm
    Percentile:
    D90
    Typical value:
    ca. 57 nm
    Range:
    > 20 - < 120 nm
    Typical length:
    ca. 166 nm
    Range of length:
    > 10 - < 500 nm
    Typical aspect ratio (:1):
    ca. 5 :1
    Range of aspect ratio (:1):
    >= 3 - <= 9
    Fraction of constituent particles in the size range 1-100 nm:
    > 80 - < 100 %
    Shape category:
    spheroidal
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    ca. 19 nm
    Range:
    > 1 - < 80 nm
    Percentile:
    D50
    Typical value:
    ca. 34 nm
    Range:
    > 50 - < 100 nm
    Percentile:
    D90
    Typical value:
    ca. 55 nm
    Range:
    > 50 - < 300 nm
    Fraction of constituent particles in the size range 1-100 nm:
    > 80 - < 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    Pigment Red 48:1
    Pure structure:
    yes
    Typical composition:
    ca. 100 %
    Range:
    ca. 100 %

    Specific surface area

    Typical specific surface area:
    ca. 42.6 m²/g
    Range of specific surface area:
    > 15 - < 500 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    EC Number:
    231-494-8
    EC Name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    CAS Number:
    7585-41-3
    Molecular formula:
    C18H13ClN2O6S.Ba
    IUPAC Name:
    barium 4-[(5-chloro-4-methyl-2-sulfonatophenyl)diazenyl]-3-hydroxy-2-naphthoate

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    Pigment Red 48:1_Nanoform_Multimodal

    Shape

    Shape descriptionopen allclose all
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    no
    Typical composition:
    ca. 25 %
    Range:
    > 1 - <= 100 %
    Shape category:
    spheroidal
    Shape:
    spherical
    Pure shape:
    no
    Typical composition:
    ca. 75 %
    Range:
    > 1 - <= 100 %

    Particle size distribution and range

    Particle size distribution and rangeopen allclose all
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    ca. 20 nm
    Range:
    > 1 - < 80 nm
    Percentile:
    D50
    Typical value:
    ca. 30 nm
    Range:
    > 10 - < 100 nm
    Percentile:
    D90
    Typical value:
    ca. 50 nm
    Range:
    > 20 - < 120 nm
    Range of length:
    > 10 - < 200 nm
    Range of aspect ratio (:1):
    >= 1 - <= 9
    Fraction of constituent particles in the size range 1-100 nm:
    > 80 - <= 100 %
    Shape category:
    spheroidal
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    ca. 25 nm
    Range:
    > 1 - < 80 nm
    Percentile:
    D50
    Typical value:
    ca. 40 nm
    Range:
    > 10 - < 100 nm
    Percentile:
    D90
    Typical value:
    ca. 70 nm
    Range:
    > 50 - < 300 nm
    Fraction of constituent particles in the size range 1-100 nm:
    > 80 - <= 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    Pigment Red 48:1
    Pure structure:
    yes

    Specific surface area

    Typical specific surface area:
    ca. 65 m²/g
    Range of specific surface area:
    > 15 - < 500 m²/g
    Skeletal density:
    ca. 2 g/cm³

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    EC Number:
    231-494-8
    EC Name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    CAS Number:
    7585-41-3
    Molecular formula:
    C18H13ClN2O6S.Ba
    IUPAC Name:
    barium 4-[(5-chloro-4-methyl-2-sulfonatophenyl)diazenyl]-3-hydroxy-2-naphthoate

    Characterisation of nanoforms

    Type of information reported:
    single nanoform

    Shape

    Shape description
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    yes

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D90
    Typical value:
    36.2 nm
    Range:
    > 10 - < 200 nm
    Percentile:
    D50
    Typical value:
    23.9 nm
    Range:
    > 10 - < 100 nm
    Percentile:
    D10
    Typical value:
    16.6 nm
    Range:
    > 1 - < 50 nm
    Typical length:
    25.4 nm
    Range of length:
    > 10 - < 100 nm
    Typical lateral dimension 2:
    98.8 nm
    Typical aspect ratio (:1):
    3.5 :1
    Range of aspect ratio (:1):
    >= 1 - <= 5
    Fraction of constituent particles in the size range 1-100 nm:
    > 80 - <= 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    Pigment Red 48:1
    Pure structure:
    yes

    Specific surface area

    Typical specific surface area:
    38 m²/g
    Range of specific surface area:
    > 10 - < 500 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    EC Number:
    231-494-8
    EC Name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    CAS Number:
    7585-41-3
    Molecular formula:
    C18H13ClN2O6S.Ba
    IUPAC Name:
    barium 4-[(5-chloro-4-methyl-2-sulfonatophenyl)diazenyl]-3-hydroxy-2-naphthoate


    Constituent 1
    Chemical structure
    Reference substance name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    EC Number:
    231-494-8
    EC Name:
    Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
    CAS Number:
    7585-41-3
    Molecular formula:
    C18H13ClN2O6S.Ba
    IUPAC Name:
    barium 4-[(5-chloro-4-methyl-2-sulfonatophenyl)diazenyl]-3-hydroxy-2-naphthoate

    Composition(s) generated upon use

    Other types of composition(s)